AMP: 311 Location: US-160 and US-89, Coconino Cty Reassurance shield at the beginning of US-160, a long three digit US route that goes all the way to Poplar Bluff, in southeastern Missouri AMP: 321 Location: US-160 and SR 264, Coconino Cty Shortly after 160 begins, we’ll approach SR 264 AMP: 321 Location: US-160 and SR … Continue reading U.S. Route 160, US-89 to SR 264